How to Make Amazake
...e-mouth jar. 4. At this point you need to incubate the concoction for 10 to 14 hours at 131º – 140º F (55º C – 60º C). We accomplished the incubation by placing the jar in a small cooler filled with water heated to 140º. Every few hours we checked the temperature and added a little more hot water as needed. 5. After 10 hours check for sweetness. If it’s not sweet enough continue the incubation process for a few more hours. 6. Once you’ve reached t...